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Coatings Ingredients
The material selection platform
Coatings Ingredients
by SpecialChem
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Bluesil™ BP 9821

Technical Datasheet | Supplied by Elkem Silicones
Bluesil™ BP 9821 by Elkem Silicones is an aqueous APE-free polymethylsiloxane resin emulsion. Combined with acrylic or styrene-acrylic dispersions, it enables the formulation of coatings with high water vapor permeability and high liquid water resistance, notably below the cPVC. In matt systems with high porosity (PVC > cPVC), Bluesil™ BP 9821 allows an excellent water repellency (the use of a silicone additive is not necessary) and high wet scrub resistance. This emulsion is designed for use in facade coatings, to optimize the balance between water repellency and water vapor permeability. Typically, the recommended ratio is between 10 and 50% relative to the total binder (calculated dry/dry).
Product Type
  • Water Repellents > Silicones
  • Scratch / Scrub / Mar Resistance Agents > Silicone-based
Chemical Composition
Polymethylsiloxane resin emulsion
Physical Form
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